We are glad to announce that our IWS STRONG pipes are now certified by a third party according to standard INSTA-CERT SBC EN 13476. This standard is an updated version of standard EN 13476 for the Nordic countries. The standard includes several additional tests and procedural amendments. The certificate allows us to mark our pipes with the Nordic Poly Mark label.
The standard handles pipes with ring stiffness SN4 and SN8, other ring stiffness classes are not included in this standard.